20th-century Swiss physicists

The 20th century saw several notable Swiss physicists who made significant contributions to various fields of physics. Here are a few prominent figures: 1. **Albert Einstein (1879–1955)**: Probably the most famous physicist of the 20th century, Einstein was born in Germany but became a Swiss citizen in 1901. He developed the theory of relativity, which revolutionized our understanding of space, time, and gravity.